I have tested both from this specific aspect, Grande also has similar cheap plastics, rattling sounds from here and there in dashboard, passenger seat vibrations when unoccupied, etc. and an overall commodity car feeling.
The sooner you people realize that both these cars are "built to a price point" and that there is simply no point in wasting time debating uselessly on this, the better. Otherwise, you can keep yourself busy by sitting in them and feeling like you have sat in a Bentley Flying Spur.